I'm right there with you. My case was received on Dec 12th, had Bio on 1/9 and since then there hasn't been any updates on the status of my case. 119 days so far, my EAD expires next month 5/4 and I am growing increasingly anxious.

I wrote my Congressman via email(wondering if I should call them instead?), submitted an inquiry through USCIS whom said they would update me on any findings in 15 days.

The strange thing is my case is being handled in Nebraska yet the service agent I spoke with when I submitted an inquiry says it is being processed in Vermont, which makes sense since it was processed there the last two times and I live in the northeast.